Apparatus for superheating steam.



E. H. FOSTER. APPARATUS FOR sUPERHEA'rmG STEAM.

APPLICATION FILED SEPT. 1, 1911.

Patented Apr 29, 1912';

3 SHEETS-SHEET 1 a amal E. H, FOSTER. APPARATUS FOR SUPEBHEATING STEAM.

APPLICATION I'ILED SEPT. 1, 1911.

3 SHEETS-SHEET 2.

WITNE88E8: [NIH/T00 E. H. FOSTER. APPARATUS FOR SUPERHEATING STEAM.

APPLICATION TILED SEPT.1,1911. 1,060,334. Patented Apr. 29, 1913.

CjBIiEBTB-BHBBT 5.

WITNESSES: [NI/EH70]? bi /MM 9. @W/ M j 6 WM manual:

EFEETED STATE% PATENT OFFECE.

ERNEST H. FSS'EZER, OF NEW YORK, N. Y

ATPPAEATUS FUR SUSERHEATING STEAM.

gccificalior. oi Letters Patent.

Patented Apr. 29, 1 913.

an E lilizu l-l. l os'i'i1n, :i Sister), residing at Now of .;iuuoiianal State of 4mm invcntcil. cu tain new and l ants. in ilppsrzitus forSm 81mm. of which the following clan and ex. inscription to asupcri'ieaicr in which tho hot gases from the yell (lir' .tly to thesuper" atom and consists generally in dispensing rul q .Yilll) thochuiuber in which the sir rncuier oz'iiliuaiily located, and providthehot gases, com from tho furnace among the liu . inlet and will i comm; Astar, the device being improvement upon my ilttttm iated July irlll't.

wing to the llIEWiIl designate tho Sdll' l igure l. is n, veititiul t ico-n'vontionnl oriu. tsunami inc-or. iota horizontal l ugitulii 8 zfir-ill f.

.l'hc character 10 5 The drums of ti o b0 it 21ml l2, Wlf the dependingwater 3.53., 14: bctwcen which legs are the invater tubes iii. 1 t.souvci'iili-nt dis .r located the vertical hulllrs. 1o anti ii, Located.iuimmliatcly ubox the water tubies ml haiilcs tho superhcatcr 1R, supgmrlctl at one and by lishzzpwl hangers "19 zxtozuiing urouuil th crosswall 20 and it tho othcr and by in one; of u (l'(J--$-Pl(6 l Ll 2E2'lrpoluling from on out rnforrcil to aim) l show a.

chamber in which the super- I In the pros-out application how socoristriuuictl this device that the ill chamber can be cniirolyeliminated: "'oustr-wtiou allows the supcrheuters to llll l andrepaired. uml also (u flow ix'cci from the furfrw'nf" o lilll' llsj.

\ uh l at the uwcyiug the it into and vitiimHl-s'. The dis charge intothe supcrlwatcr is in front. of hullle 1(3 and tho passing along thelongitudinal length of the U-tubcs are caused to How d wnwardly betweenhatlles 1G and 17 among the water lube-s 15. It will thus be noted thatthe hot gases: after passing from the superheater are utilized to heatthe water tubes. The baffle 16 is provided with extensions 16 at theupper end thereof 55 and serve to deflect the furnace gases, comingthrough the pass-a cs 24, among the supcrheat-er elements. s shown, thesuperhcater elements adjacent the side walls of the boiler setting passrca'i'wardly through the deflectors. It will therefore be seen that thegases coming through the passages 24 will be properly disseminatedtlroughout the, super-heater and especially at that p0rtion which isremote fsom the headers thereof.

The headers of tho superhcater are shown at 526 uud 27- To the headerare conilt ili'fl the tubes 28, which .:onvoy the steam from th upperpart of the drums, or from 39 tho upper part of tho water log tothosupec' heater: The harder is provided in the and thereof with anoutlcl .259 extcnding through either sirlo of the hoiler fitting. It isobvious that the outlets can bc provided upon both sidcs of saidsetting. Such a consiructiou not only reduces the number of jointsncvcssary to build up the ordinary connections, but also stcarlies andlowers the steam pipc. (.onscquoutly & holler of a larger capacity canbe used with a low ccillug.

It will bc observed from the above description that the furnace gasesdue to the vertical baffling and the arrangementof the superheater andassociated parts, pass from the furnace through the water tubes 15, overthe bafile 16, downwardly through the water tubes under the ballle 17,and again umvardly through the water tubes to the smoke stack. Part ofthe furnace gases puss directly to the superheatcr, and after having thesame pass downwardly between the baffles among the water tubes and fromthis point follow the course of the gases which pass from the furnacedirectly into the water tubes. Hence the hot gases which pass directlyto the superheater from the furnace sweep downwardly among the boilertubes and aid in heating the said tubes.

What I claim is:

1. The combination with a boiler setting and furnace, and a water tubeboiler having its water tubes arranged in the path of the furnace gasesflowing through said setting and having one or more drums above saidtubes, of a superheater above said water tubes and exposed to the openspace between said tubes and the drums, and flues or conduits in theside walls of the setting extending from the furnace and discharging hotgases therefrom upon the superheater, substantially as described.

2. The combination of a'boiler setting and furnace, a drum supported insaid setting, a superheater located below said drum, batlle locatedbelow said superheater, bypasses for hot furnace gases in the sides ofthe boiler setting, and extensions or deflectors on said baffle todisseminate the hot gases flowing through the by-passes throughout thesuper-heater elements.

3. The combination with a boiler setting and furnace, a drum supportedin said setting,' inclined water tubes located between the furnace anddrum, front and rear battles for'the water tubes to deflect the hot'gases upwardly and downwardly among said tubes, a superheater locatedbetween the water tubes and the drum, by-passes in the hot gases towardthe center of the boiler 7 setting.

' 4. The combination of a boiler setting, one or more drums supported insaid setting, water tubes substantially below said drums and arrangedlongitudinally thereto, a superheater having tubes between the drums andthe said water tubes, said superheater tubesbeing substantially parallelto said drums, inlet and outlet headers for said superheater, conduitsadapted 'to supply hotgases directly from the furnace to saidsuperheater, battles to deflect the aforesaid .gases among thesuperheater tubes, means to convey steam from the drums to the aforesaidinlet header, and means to convey the steam from the outlet headerthrough the'side of the boiler setting.

In testimony whereof I afiix my signature in the presence of twosubscribing witnesses.

ERNEST H. FOSTER,

